Calflora
Taxon  Report   2117    
Cirsium arizonicum  (A. Gray) Petr.
Arizona thistle
Cirsium arizonicum, a dicot, is a perennial herb that is native to California, and also found elsewhere in western North America.
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial

Bloom Period
Family: Asteraceae  
Genus: Cirsium
Subspecies and Varieties:

Wetlands:
Arid West: Occurs usually in non wetlands, occasionally in wetlands
Mountains, Valleys and Coast: Equally likely to occur in wetlands and non wetlands

Habitat: slopes

Communities: Subalpine Forest

Name Status:
Accepted by JEF + PLANTS
Alternate Names:
PLANTSCirsium arizonicum var. nidulum
JM93Cirsium eatonii
PLANTSCirsium nidulum
PLANTSCnicus arizonicus
More information about  Cirsium arizonicum

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2022. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 05/29/2022).